The latest newsletter from Aspyr Media contains an interesting bit of information regarding the status of Civilization IV, that latest creation in Sid Meier's famous series. Here's the scoop:

Civ 4 has been an interesting project; it uses several external code libraries ("middleware") on the PC, all of which we had to find or build Mac versions of. For everything from graphics & networking to sound, video, and user interface, we've had to work out licenses and in some cases port library code to OS X. The reviews for Civ 4 on the PC continue to be incredible, so we are very excited about bringing such a great game to the Mac.